Year

Anomaly

Coordinates

Swarm region (number of events)

1998

Jul-Aug

−27.64N, −37.47S, −66.25E, −74.85W

Valparaiso-Concepcion (Chile)-324

2001

Apr

−18.94N, −40.05S, −60.30E, −74.36W

Chile coast-294

2001

Jun

−14.13N, −37.17S, −64.39E, −75.28W

Peru/Bolívia-238 -Chile Coast-111

2001

Oct

− 18.96N, −36,58S, −64.26E, −77.97W

Northern/Southern Chile-119

2001

Dec

−26.81N, −37.70S, −65.71E, −73.09W

Northern/Southern Chile-372

2002

Jan-Apr

−2.07N, −41.75S, −63.63E, −82.79W

Near coast Ecuador/ South Argentina-1051

2003

Apr-Jun

−18.89N, −39.30S, −63.75E, −73.07W

Near Coast Chile, S. Chile/Arg border-1273

2005

May-Jun

−13.48N, −41.43S, −64.26E, −77.27W

Central Peru, Near Coast Chile-470

2006

Apr-May

−25.60N, −36.21S, −67.76E, −72.58W

Chile/ Arg border, Central Chile-562

2006

Jul-Aug

−27.65N, −37.40S, 67.7E, −72.5W

Chile Coast, Central Chile-556

2007

May

−18N, −38.15S, −62.20E, −74.68W

North/Southern Chile-289

2007

Jul-Aug

−12.33N, −16.08S, −74.8E, −78.05W

Peru coast-South/Central Chile-737

2010

Feb-Apr

−32.27N, −39.45S, −70.37E, −75.38W

Coast Central Chile-1531

2014

Mar-Apr

−32.27N, −39.45S, −66.46E, −75.38W

Coast Central Chile-618

2015

Sep-Nov

−27.75N, −37.57S, −68.59E, −75.18W

Coast and off coast Central Chile-923

2017

Apr

−19.29N, −39.35S, −65.88E, −75.73W

Near Coast Central and North Chile, off coast-202